<Styles xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Style Selector="CheckBox">
        <Setter Property="Background" Value="{DynamicResource ThemeBorderLowBrush}" />
    </Style>
    <Style Selector="CheckBox:pointerover">
        <Setter Property="Background" Value="{DynamicResource ThemeBorderMidBrush}" />
    </Style>
</Styles>